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DIGITAL DUST INDICATOR
AP-632TL / AP-632TM / AP-632TH
Thank you for purchasing this product.
Be sure to read this operation manual before use.
Handle this product in accordance with the explanations described in this manual.
After reading this operation manual, keep it with the warranty in a safe place.
If you find any unclear points in this manual, please contact your Sibata agent.
SIBATA SCIENTIFIC TECHNOLOGY LTD.
Operation Manual
CODE 080000-6311
080000-6312
080000-6313
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Summary of Contents for Sibata AP-632TL
- Page 1 Handle this product in accordance with the explanations described in this manual. After reading this operation manual, keep it with the warranty in a safe place. If you find any unclear points in this manual, please contact your Sibata agent. SIBATA SCIENTIFIC TECHNOLOGY LTD.
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Page 3: Table Of Contents
Table of Contents Using the Product Correctly and Safely ..........4 Overview ....................5 Measurement Principle................ 5 Sensitivity ..................... 5 Measurement Values ................6 Specifications ..................6 System Configuration ................. 7 Description of Parts ................8 Measurement Method ................ 12 Maintenance, Inspection, and Precautions ........ -
Page 4: Using The Product Correctly And Safely
• [Modifications and Repairs Are Prohibited] Never disassemble or modify this product, as doing so will void the warranty with Sibata. Doing so may also result in unforeseen faults and accidents. • If a fault occurs, request repairs immediately. Never leave the fault as is, or attempt your own repairs, as subsequent use may result in unforeseen accidents. -
Page 5: Overview
1 Overview The typical method used for determining the concentration of airborne particulate matter involves using suction to collect particles directly onto a paper filter and then weighing the filter. However, that method requires sophisticated measurement technology, complicated operations, and, for low concentrations, long sampling times. -
Page 6: Measurement Values
4 Measurement Values Due to characteristics of the light scattering method, relative concentration measurement values must be corrected if measurements for particulate matter other than standard particles (stearic acid particles with a mean diameter of 0.3 µm) are used to evaluate mass concentration. There are many factors such as differences in substances to be measured and differences in particle size distribution in order to obtain correction coefficients for all particles in advance. -
Page 7: System Configuration
6 System Configuration Thermostatic chamber Power supply circuit circuit Detector Light source circuit Intake fan Cooling fan High voltage circuit Photoelectric current Pulse circuit integration circuit Waveform shaping circuit Range switching circuit Span check circuit D-A converter Pulse output circuit Pulse transmission circuit Meter drive circuit Recorder output circuit... -
Page 8: Description Of Parts
7 Description of Parts [1] Front Panel (1) POWER Switches the power ON or OFF. Switches light source ON or OFF and the switch also serves as the switch (2) LAMP for the cooling propeller fan. (3) H.V Switches the high voltage circuit ON or OFF. This multi-rotational variable resistor can be rotated 10 revolutions to make (4) SENSI.ADJ fine adjustments to sensitivity (changes sensitivity by about 10 % per... - Page 9 [2] Rear Panel Air intake port Exhaust port (10) Ground terminal : To prevent electric shock and minimize noise, always connect this terminal to ground. (11) Power supply connector : Use the power cord to connect this connector to a 100 V AC power supply.
- Page 10 [3] Side Exterior (16) Cooling exhaust port : The internal propeller fan blows heat from the detector light source, amplifier, and other components out this port. (17) Cooling intake port : This port takes in air for cooling. Be careful to prevent blocking this port, such as when placing the unit on a rack.
- Page 11 (24) Guide rails : Used to slide out the interior of the instrument for maintenance, the instrument can be removed from the case by unscrewing four screws from the rear side of the instrument. (25) Detector : Air drawn in from outside the instrument passes through this area, where the amount of dust in the air is converted to a corresponding amount of scattered light.
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Page 12: Measurement Method
8 Measurement Method Prepare the tubing joints, intake pump, flow meter, and other components to be used for the given application. Similarly, connect the display unit using the provided cable that is appropriate for the given application. (1) Connect the power cord to a 100 V AC power supply and turn the power switch ON. The pilot lamp illuminates. -
Page 13: Maintenance, Inspection, And Precautions
Scattering plate values may fluctuate or change over time if dropped or after extensive use. To calibrate the sensitivity, contact a Sibata representative. (3) Replace the light source lamp as follows. - Page 14 (4) Replace the filter as described below. To prevent contamination from dust flowing past the detector input surface, a filter (indicated with an arrow) uses the lower pressure inside the detector to continuously generate and supply clean air to the light input area. Therefore, for environmental monitoring, this filter must be replaced when dirty or at least once a year.
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Page 15: List Of Accessories
a. Turn the high voltage switch OFF. b. Remove the three screws indicated with arrows and then remove the top cover by pulling it forward. c. Scrape off any dust accumulations inside using the brush tool provided. Clean those areas that can be reached with the brush. -
Page 16: Warranty
Warranty If a Sibata product fails within one year from date of purchase, it will be repaired free of charge. To request repairs, contact your Sibata representative. Be sure to provide the item code, product name, model number, serial number, a description of the problem, and other relevant information.
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